Street-cleaning machine.



I 11-. CARR.

STREET CLEANING MACHINE.

" APPLICATION FILED JUNE 6, 1912.

1,081,209. Patented 1090.9,1913.

5 SHEETS-MEET 11 i I i Wvtwwoqo H 6 I I I CARE,

CLEANING MACHINE.

APPLI'OATION FILED JUNE 6,1912

STREET Patented Dec. 9, 1913.

mmmgv 5 SHEETS-$$HEBT 2.

H. CARR.

LOBLQOQD STREET CLEANING MACHINE.

APPLICATION FILED JUNE-6, 19x2.

Patented Dec. 9, 1913 5 SHEETS-SHEET 3 Q/v vfuawc o Kss H. CARR.

STREET CLEANING MACHINE.

APPLICATION FILED JUNE 6. 1912. v

. Patented Dec. 9, 1913.

5 SHEETS-SHEET 4.

awn/Map CLEANING M1 GHKNE.

v .uremmmw Flu-1n J Patented Dec. Q, 1913.

5 SHEETS-SHEET 5.

HUGH CARR, OF SMYRNA, MICHIGAN.

srnnnr-cmamne MACHINE.

Specification of Letters Patent.

- PatentediDec. 9,191 3.

Application filed June 6, 1912. Serial No. 702,093.'

' "To all it mag concern. a

Be it known that I, HUon CARR, a citizen of the United States, residing -at-.Smyrna,

\ in the county of Ionia and State of.Michian, have invented certain new. and useful nzprovements in Street-Cleaning Machines an I do declare the following to be a full, clear, and exact description of the invention, such as willenable others skilled in 1 the art to which it appertains to 'make and use the-same.

2 Thislinvention relates to street cleaning machines. -'Y

One object of the invention is to provide street cleaning machine having an improved construction and arrangement of propelling mechanism which is also ema ployed for operating the 'dll'l) sweeping,

gathering and discharging devices of the machine.

Another-object is to provide a machine of this character having an improved construction and arrangementof'sweeping and dirt thering mechanism and means whereby gathered dirtnlis discharged frgm the machine into a wagon or other receptacle or lace of deposit. r

. \K'ith' base and other ob'ects in view, the invention consists of certain novel. features offconstruction, and the combination and! arrangement of parts as will be more fully described and claimed.

In the accompanying drawings, Figure 1 i's a side view of my improved street clean- 3 vin g machine; Fig. 2 is a plan view of the machine with, the dirt receptacle removed, and parts broken away and in section; Fig.

3 is "a'central vertical longitudinal section of; the machine; Fig. 4 is a Vertical cross' sectional view thereof;'Fig. 5 is'a planviewof the; supporting and operating mecha- L'nismjor the brushes, removed from'the ma 1 chine; 'Fig'. 6 is a detail ers cti've view of a portion of the forwardien ofthesup porting frame. and the main drive shaft showing more particularly the construction and arrangement of the gears for transmitting motion to the suction fan and elevator of the machine, and the arrangementjof the levers for controlling 'thevarious clutches for throwing parts of the' machine into and out of operation. .Eig '7 is a detail'perspective view of thefiaine for one of the diagom llyarrangeld rotary brushes of the ma.-

s 8 1s; a d ailpp wt re vi ws-air,

member 7 of a friction clutch the opposite the machine and has a treadle 12 within of the frames On t the lower end of the dirt conducting tube and the flared mouth piece thereof.

In the embodiment of the invention, 1'

provide a, supporting frame or chassis 1,

which is mounted on rear, driving wheels '2, and front steering wheels 3 which are provlded with the usual or any suitable form of steering mechanism operated by a hand wheel 4 suitably arranged on the machine in convenient reach of the-driver s seat 5. arranged in, the forward endof: the frame 1 18 a motor 6 which may be of any desired construction and whichis provided with a. drive shaft having on its inner end one .70" member' 8 of which is slidably keyed to a mam drive shaft 9 revolubly mounted in su table hearings in the frame of. the mach ne and which is normally held in o era.- tive-enga ement with theclu'tch mem r 5- by a colle s ring 10. The clutch member 8 1s dlsengage from the member 7 by a suitableshlftmg lever 11 which projects through the platform adjacent to the dash board of convenient reach'ofjthe foot of the operator as ,showln. J The main drive. shaft 9 extends b through the center'of the.machine and has arranged atla suitable point therein a'chang'e gear transmission 13 and has its rear end connected with a transverse jack shaft 14 by a differential gearing 15' Fixed on the jack shaft 14 adjacent to-the opposite sides of the machine are sprocket gears 16 which are connected by sprocketchains 17 to similar gears '18 fixedly connectedwith the rear. drive wheels 2 whereby thelatter are driven to propel the machine;

Revolub y mounted in suitable hearings in do the main rame of the machine substantially "midway between its ends is a brush supporting and "operating shaft 19 on which are hung eye's or bearings 20 at the front end' of'brush carrying frames 20 which project rearwardl'y and downwardly from the shaft and have revolubly' mounted in bearings 22" at their outer ends diagonally arranged cylindrical brushes 21 the sha ts 22 ofwhich project beyond the outer sides of the frames '20 and have fixed thereon bevel gears 23 which are engaged with'similar gears 24 (in power transmitting shafts 25 revolubly mounted in suitable bearings 25- on the e forwlrdend i ings 29 sprocket chain 31 with fixed on the shaft 19.

diagonal brushes 21 and gearing the sameto the shaft the dirt forwardly and in 'a windrow of the/shafts 2 5 are fixed-bevel gears/ 26 which. are engaged with similar gears 27 fixed on the shaft 19-as shown.- Also hung on the shaft 19 isthe eye or bearing 28 of a central H -shapedbrush supporting framev 28 which extends rearwardly and downwardly and has revolubly mounted in bearin its outer end a central brush 29 on oneend of a sprocket gear 30 which is connected by a a' similar gear '32 By arranging the Fixed on the ends of the shaft 19 are 33 which are connected by sprocket chains 34 to sprocket gears 35 loosely mounted on the jack shaft 14. Qn the gears 35' are clutch' members 36 which are adapted to'be engaged with clutch memsprocket gears bers 37 fired on the shaft 14 whereby when gagement.

said clutch members are engagedthe movement of the shaft 14 will be transferred to the shaft 19 thereby driving the latter in the proper direction. The gears 35'are shifted inwardly to engage the clutch members thereon with the clutch members 37 on the shaft 14 by coiled springs 38 which also yieldingly hold the clutch members in endiseng'age the'clutch member-s thereon from the clutch shaft 19 out of gear by suitably arranged clutch shifting levers 39 which are disposed within reach of the operator.

By loosely connecting the forward ends of the brush holding frames 20 and 28 to the shaft 19, said frames together with the brushes carried thereby may be lifted or swung upwardly when desired. and inorder to effect the lifting of the brushes, I prov de lifting cables 40 and 40 which are connected at their rearends to the brush carrying frames and which pass over suitably arranged guide pulleys 41 and are connected at their forward ends to brush lifting levers 42 mounted near the drivers seat 5 and which are provided with locking mechawhereby the brushes may be held nisins 43 in an elevated position. I -It will be observed from Fig. 5 that at the points 20 the side bars of the H-shaped frame 28 carrying the intermediate roller 29 the shaft of which is fixed The gears 35 are retracted to members 37 thus throwing the:

underlie the inner cross bars of the two side frames 20 carrying the'diagonal rollers 21.-

The sidefrarn'es are independently elevated by the ropes 40 and levers 42 as when for any reason it is not desired to sweep atone side of the street;

Suitably supported on the frame 1 of the 4 machine and in the'rear ortion thereof is i a dirt receptacle 4-4 the ottom of which preferably inclines from its forward end toward the'rear end thereof as shown. Connected with the rear end ofthe receptacle 44 near the top thereof is a dirt conducting tube'45 which extends downwardly and has its lower end projecting-forwardly and terminating a. slight distance above the street,

said lower end being flared outwardly to form a fan shaped mouth piece'46 which, as

the machine is propelledsuclas and gathers up the'dirt collected or swept together by the brushes. Attention is directed tothe fact that while the oblique rollers 21 are connected with the shaft 19 by. gearing" which causes them to rotate in a reverse direction so that the dust and. dirt gathered up'by them is brushed obliquely int-o the wiridr'ow above referred to the intermediate roller is connected with said shaft 19 by belting which. causes it to rotate in the opposite direction with the result that the dustand dirt g'athered in said windrow is thereby brushed directly'backward toward the fanshaped mouth-piece 46 of the suction pipe 45. If allbrushes rotated in a direction the reverse of that traversed by the main wheels,

the dirt would be swept forward and then.

probably swept forward again by a succeeding brush, with the result that the dirt would be in a measure keptout of the wayof the mouth-piece; but by reversing the direction of movement of the' brush directly forward of said mouth-piece,

the advantage described above 'is gained. The suction through the-receptacle 44 and tube 45 is accomplished by a fan 47- arranged in a suitably supported casirg 48 beneath and to one side of the forward end of the, receptacle, said fan casing being connected by a tube 49 to the forward end of the bot tom of the receptacle as shown. Arranged in the forward end of the receptacle above the upper end of the tube 49 is a screen 50 of fabric or other suitable material through which the air is drawn by the fan 47 and by means of which the dirt is separated from the air and prevented from being drawn into the fan casing. The fan casing is provided with a suitable discharge spout 51 which toward the street as shown. On one end of the shaft of the fan is fixed a pulley 52 which is-connected by a belt 53 to afan operating pulley 54 which is fixedly -1nounted on a short fan operating shaft 55 revolubly mounted in suitable bearings in projects downwardly and discharges the air 30 'oeptacle and having its lower end working with which is adapted to .furcatecl end of a gear shifting bell crank LL r LAM 1' n. it Lsn (n! 7111.. a 1 to the shaft 55 is a beveled gear 56 whic adapted to be shifted into engagement with a bevel gear 57 fixed on the main drive shaft .9 as shown. The hub of the gear 56 is rovided with an annular oove and 'co lar engaged the bilever 56 which is actuated by a hand lever 58the u per end of which is disposed within reach 0 the driver. By thus arranging the fan operating mechanism it will be seen that the same may be readily thrown into and 1 out of .operation,for driving the fan when I is desired.

In order to remove the dirt from the receptacle 44, I preferably provide an elevating and discharging mechanism comprisirig a well or hopper 59 arranged on the bottom of the receptacle andtoward which the bottom and sides ofthe receptacle incline "as shown in. Fig. 4' of the drawing. The

opening between the bottom 'of the recep tacle 44 and the hopper is normally closed by a valve or gate 60 which is slidably engaged with suitable guides Bland. is adapted to be retracted to anopen position through one side of the bottom of'the receptacle as shown. 1 l Arranged beneath the bottom of the rein the hopper 59, is an endless conveyer or elevator 62' comprising a supporting bar .or

chute 63'which is disposed at-a suitable angle and secured to one side ofthe bottom [of the receptacle as shown. The bar 63' is preferably formed in two sections hingedl'y connected together adjacent to one side of the receptacle whereby .the outer section of the bar together with the part of the conveyer connected therewith may be swung back against the rece tacle and to an out 'of the way position w an not in use. Revbrought around through the hopper 59, thus taking upandelevating the dirt dischar edtherein from the receptacle 44. The' irt. when thus elevated may be discharged into' a wagon or other receptacle or onto any desired place of deposit.

On the forward end-of the shaft 68 of the-lower oonveyer pulley is a sprocket gear 69 whichis connected by a sprocket chain' .70 with asprockct gear 71' fixed on the inner end of a wer transmitting shaft 72 iournaled in suitable bearings-on the frame 65'is an. endless conveyer elt ve] gear a which is abe 1 All a short conveyer operating s aft/4'5 which is r'cvolubly mounted in suitable hearings on the frame ,of the machine 0 fan 0' rating shaft 55; Onthe-ahaft'lli is sli ably keyed a bevel gear 76, which. is adapted to be shifted into engagement with the bevel gear 57 onthe main drive shaft 9 with the opposite side of which the fan operat-in gear 56 is adapted'to beenglged.

It will t as be seen thut'the gear 57 serves the double function-of driving the fan and."

thedirt elevating and conveying mechanism. It will be understood however that these parts are not both operatedatthe same time.

lhe'hub of .the bevel gear 763s provided with an annular groove and collar which is adapted to receive the bifurcated end of a positeto thegear shifting bell crank lever 77' whichflis actuated by,a hand-lever}? the upper .end.

of .which is disposed within convenient reach of the driver whereby the gear 76 ms be shifted into and out of engagement wi the geanffl for driving the elevating mecha- 'nism when desired.

Having thus described my inventiiin, whit I claim is:

1. Ina street sweeping machine, the combination with a framework, a dirt thereon,fand a suction tubedependi from said'rece tacle at the rearend oft ma-' chine an having a mouthpiece at italower extremity; of a plurality of brushes carriedby ,said framewdi-k, onedisposed directly standing oblique 'to, the first'and disposed also forward of the mouth-piece but rearward and to the sides of the first-mentioned brush, and. means forjotating said first mentioned brush in a direction to sweep-the dust toward the mouth- )iece and the other brushesin the opposite irection.

v .2; In a.st1 'eet .sweepingmachine, the combination with a framework, a dirt receptacle thereon. and a suction-tube depending from said receptacle at the rear end of the machine forward of said mouth-piece and the others.

Ill.

and having a mouth-pieceat its lower extremity; of a plurality-ofbrushes carried said framework, one disposeddirectly forward of said moiith-piece and the others to the sides of and rearward of the first-mew ,tioned brush with their axes obli ac and converging toward each other to t e rear of the machine. and means for rotating said first-mentioned brush in a direction to sweep the dust toward the mouth-piece and the other brushes in'the opposite direction. I

3. In a street sweeping machine, the combination with a framework, a dirt receptacle thereon, and a suction tube dependinge froln saidrece tacle at the rear end of I machine in having a mouthiece at. its low- :ss 1 and extending forwardly for a suitable extremity ofapluralityo brushes, onedisposeddirectly forward of said mouth-piece and others at opposite sides of the first-mentioned brush withtheir axes oblique and converging toward each other to the rear of the machhae, a frame supporting each brush and movably connected with said frame work, the frames of the side brushes partly overlying theframe of the other brush, means for lifting the rear ends of the side frames independently, means for lifting the intermediate frame, and means for. rotating.

ries said intermediate brush, two side frames each of which has its front end journaledon said shaft, its bodyoverlying a portion of said H-shaped frame, and its rear end carrying one of the side brushes, means for elevating either side frame, and independent means for elevating the H-shaped frame.

5. In a street sweeping machine, the combination with a main framework, a shaft journaled across the same, an intermediate brush, and two side brushes of an H-shapml intermediate frame whose front end is jour.-.

naled on said shaft and whose rear end car ries said intermediate brush, two side frames each of which has its front end journaled on said shaft, its body overlying a portion of said H-shaped frame, and its rear end carrying one of the side brushes, connections betweenthe shaft and the intermediate brush brushes for rotating the for rotating the latter in one direction, connections between the shaft and the side latter in the other direction, means for elevating the side frames independently, and means for elevating the intermediate frame.

'(5. In a street sweeping machine, the combination with a main framework,-a trans verse shaft beneath the same, and drive wheels onsaid shaft; of an H-shaped frame having bearings. at its upper end loosely mounted on said shaft and other bearings at its lower end, a.brush whose shaft is journaled in the last-named bearings, a pair of other brush-frames each having spaced bearings at its upper end'mounted loosely on said shaft astride one offthebearings on the.

first-named frame and an element overlying the H-shaped frame,eachsideframe also' having bearings in its lower-end, a brush whose shaft is mounted therein, connections between the shafts of. said brushes and the.

respective drive wheels on the first-named shaft; means for raising either side frame independently of any other frame, and Y means for raising the intermediate frame, for the purpose set forth.

7. In a street sweeping machine, the combination with a mam framework, a trans verse shaft beneath the same, and threedrive wheels fast on said shaft; of a frame having two bearings at its upper end loosely mount ed on said shaft,.a brush whose shaft is journaled in this frame, a pair of other brushframes each having two spaced bearings at its upper end mounted loosely on said shaft astride one of the bearings on the firstnamed frame and partlyoverlying a side bar of the first-named frame, brushes whose shafts are journaled in the last-named frames, connections between the shafts of all brushes and the respective drive wheels, lever mechanism for raising either side frame independently of any other frame, and leyer mechanism for raising the intermediate frame,-for the purpose set forth.

In testimony whereof I have hereunto set my hand in presence of two subscribing wit- 

